RAD 1501: A Trial of Virtual Cone Trigeminal Neuralgia Radiosurgery

Inclusion Criteria: * Patients with trigeminal neuralgia pain that is not well controlled despite medical management (BNI 4 OR BNI 5) * Patients must have an ECOG status of 0, 1, or 2 * Patients must be at least 18 years of age * Life expectancy must be greater than 12 months * MRI of brain within prior 12 months to confirm lack of other causes of facial pain * All patients must be given written informed consent Exclusion Criteria: * Patients who have had prior brain radiosurgery or therapeutic radiation therapy to the pons * Patients with atypical trigeminal neuralgia or headache pain syndromes * Patients with pain associated with multiple sclerosis or base of skull tumor * Patients with medical contra-indications to MR imaging (e.g. pacemaker)